As Functional Manager for the Department of Defense (DoD), DSS provides security education, training, certification, and professional development for DoD and for other U.S. Government personnel, contractor employees, and representatives of foreign governments.
Vertigo is the most common type of dizziness. The most common diseases that result in vertigo are benign paroxysmal positional vertigo (BPPV), MÃ©niÃ¨re's disease, and labyrinthitis. Less common causes include stroke, brain tumors, brain injury, multiple sclerosis, and migraines.
Dizziness and Vertigo. Dizziness is a general term that includes four syndromes: A) vertigoâthe illusion of motion, B) pre-syncopeâthe feeling that one is about to faint, C) disequilibriumâthe feeling of unsteady gait, and D) light-headednessâthe feeling of a vague imbalance inside oneâs head.izziness and Vertigo. Dizziness is a general term that includes four syndromes: A) vertigoâthe illusion of motion, B) pre-syncopeâthe feeling that one is about to faint, C) disequilibriumâthe feeling of unsteady gait, and D) light-headednessâthe feeling of a vague imbalance inside oneâs head.